Management Discussion & Analysis of Business Operation Bangchak Corporation Public Company Limited For the year ended December 31st, 2018 Management Discussion and Analysis of Business Operation for

(unit: THB million) 2019 (2nd Quarter) Percentage 2018 (2nd Quarter) Percentage associate Management benefit expenses (8.67) (113.63) (9.84) (1,929.41) Financial cost (0.08) (1.05) (0.10) (19.61) Share of

impairment of investments in associate (0.01) (0.05) (1.64) (268.85) Management benefit expenses (11.30) (58.89) (14.16) (2,321.31) Financial cost (0.12) (0.63) (0.14) (22.95) Share of loss in associates

DCORP 025/2020 May 13, 2020 Subject: Management Discussion and Analysis – Explanation of net profit for the quarter ended March 31, 2020 and the increase in the overall operations of more than 20 percent

Profit was due to the overall operational business increase of the Company together with a more effective management of its borrowings that resulted in overall reduced interest costs. Operating Performance

372.36 20.73 35.11 Loss from impairment of investment in associate 107.78 783.85 65.33 110.64 Management benefit expenses 18.68 135.86 24.06 40.75 Financial cost 0.69 5.02 0.41 0.69 Share of losses in

Bangchak Corporation Plc. Management Discussion & Analysis of Business Operation For the quarter ended September 30th, 2019 Management Discussion and Analysis of Business Operation for Q3/2019

Exchange Commission Notification of the Office of the Securities and Exchange Commission No. SorThor/Nor/Yor/Khor. 3/2550 Re: Rules, Conditions and Procedures for Establishment of Risk Management System to

Office of the Securities and Exchange Commission No. SorThor/Nor/Yor/Khor. 3/2550 Re: Rules, Conditions and Procedures for Establishment of Risk Management System to Prevent the Use of Securities Business

Commission Notification of the Office of the Securities and Exchange Commission No. SorThor/Nor/Yor/Khor. 3/2550 Re: Rules, Conditions and Procedures for Establishment of Risk Management System to Prevent the